US4661355A - Process for the preparation of alcohol-free drinks with a yeast aroma - Google Patents

Process for the preparation of alcohol-free drinks with a yeast aroma Download PDF

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US4661355A
US4661355A US06/715,583 US71558385A US4661355A US 4661355 A US4661355 A US 4661355A US 71558385 A US71558385 A US 71558385A US 4661355 A US4661355 A US 4661355A
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Fritz Schur
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Brauerei Feldschlosschen
Feldschlosschen Getranke Holding AG
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Brauerei Feldschlosschen
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • A23L2/84—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter using microorganisms or biological material, e.g. enzymes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12G—WINE; PREPARATION THEREOF; ALCOHOLIC BEVERAGES; PREPARATION OF ALCOHOLIC BEVERAGES NOT PROVIDED FOR IN SUBCLASSES C12C OR C12H
    • C12G3/00—Preparation of other alcoholic beverages
    • C12G3/08—Preparation of other alcoholic beverages by methods for altering the composition of fermented solutions or alcoholic beverages not provided for in groups C12G3/02 - C12G3/07

Definitions

  • the invention relates to a process for the preparation of alcohol-free drinks with a yeast aroma, such as beer, wine or fruit wine, starting from an aqueous liquid which contains nutrients and/or flavour substances.
  • the liquid can, but does not have to be, fermentable with yeast to give an alcoholic drink.
  • Fermentable liquids which can be used for this purpose are, for example, finished wort, grape juice and fruit juice. Whey is an example of a suitable non-fermentable liquid.
  • the starting liquids can also be prepared by mixing an appropriate nutrient and/or flavour substance concentrate with water.
  • low-alcohol and alcohol-free drinks such as alcohol-free beer or alcohol-free wine or fruit wine.
  • low-alcohol and alcohol-free drinks such as alcohol-free beer or alcohol-free wine or fruit wine.
  • the expressions "low-alcohol” and “alcohol-free” have different definitions in different countries, and their use is not permitted in all countries.
  • Arabic countries have recently demanded an alcohol content of 0.0% by volume, that is to say if there is any alcohol content at all, it may only be in the second place after the decimal point.
  • the process according to the invention thus enables drinks in which an alcohol content can no longer be detected (the detection limit is about 0.05% by weight of alcohol at present) to be prepared.
  • the state of the art is described below, using an example of the preparation of an "alcohol-free" beer.
  • Processes for the preparation of low-alcohol or alcohol-free beer are based on two principles.
  • processes of the first type the formation of alcohol during fermentation is curtailed. However, these processes always give beers with a significant alcohol content, and as a rule with a very sweet, malty, bitter and inharmonious flavour because of the high content of dry substance and the pH value and the content of fermentation by-products.
  • processes of the second type the alcohol formed during fermentation is subsequently removed from the beer, but this is in most cases associated with a loss of aroma substances which are desirable from a flavour point of view and in some cases with the formation of aroma substances which are rather disadvantageous.
  • German Offenlegungsschrift No. 2,832,487 from Nordbrau Ingolstadt GmbH & Co. KG discloses, for example, a process for the preparation of beer with a reduced alcohol content by fermentation of wort prepared from malt mash, in which the non-aerated wort is fermented in a fermentation vessel, which has first been completely freed from oxygen, at a temperature of 4° to 7° C. with a yeast addition of 0.25 to 0.35 liter of thick liquid brewer's yeast per hectoliter of wort under a pure CO 2 atmosphere until the desired alcohol content is reached. It is said to be possible to prepare a beer in which the alcohol content can be reduced to about 0.2% by weight but which corresponds to a conventional alcohol-containing beer in respect of aroma, flavour, foaming properties and colour by this process.
  • the process according to the invention is thus based on the idea of bringing the starting liquids for the preparation of alcohol-free drinks, (which may optionally be prepared from concentrates, such as wort or must concentrate) into contact, at temperatures which are so low that virtually no alcoholic fermentation takes place, with a yeast which has been removed from the fermentation process and has been freed from the fermented liquid. It was hitherto believed that yeast releases no aroma substances at low temperatures, for example, below 0° C. However, it has been found that the aroma substances still diffuse from the yeast into a liquid even at temperatures below the freezing point of the liquid. The yeast thereby additionally has a reducing effect, by which means, for example, aldehydes, which could impart an undesirable aroma to the drink, can be reduced.
  • the starting liquid and the yeast can be brought into contact with one another at, for example temperatures below 3° C., preferably below 0° C. and in particular as close as possible to the freezing point of the liquid, for example, at -0.4 to -0.5° C.
  • the starting liquid is preferably brought, by dilution, to a dry substance content such that the flavour of the alcohol-free drink is balanced, (for example in the case of beer is not too malty), that is to say, for example, is not too sweet, too watery or too bitter.
  • a fermentable starting liquid can advantageously be adjusted to a dry substance content such as would be obtained after alcoholic fermentation.
  • the dilution can also be effected only after the liquid has been brought into contact with the yeast.
  • the dilution is preferably carried out with oxygen-free and/or sterilised and optionally softened water.
  • the dry substance content of the starting liquid is preferably below 30% by weight.
  • the dry substance content and the pH value are preferably simultaneously adjusted by addition of a water/acid mixture, but it is equally possible first to adjust the dry substance content by addition of water and then to adjust the pH value by addition of acid. It is possible to use, for example, brewing liquor, which as a rule contains fewer micro-biological germs than drinking water and less bicarbonates, or oxygen-free and/or sterilised and optionally softened water, to which, if appropriate, the abovementioned acids are added in the required amount, which also depends on the eventual presence of buffer salts in the starting liquid.
  • the cooled starting liquid and/or the alcohol-free drink are preferably saturated with carbon dioxide in a manner which is known per se.
  • the carbon dioxide content can be up to 10 g per liter, preferably about 5 g per liter.
  • the yeast is brought into contact with the starting liquid directly after removal from the fermentation process. It is preferably freed completely from the fermented liquid.
  • suitable yeasts are the following:
  • Saccharomyces cerevisiae (a top-fermenting brewer's yeast)
  • Saccharomyces carlsbergensis (a bottom-fermenting brewer's yeast)
  • Saccharomyces uvarum (a bottom-fermenting brewer's yeast)
  • yeasts or yeast mixtures it is also possible to use other yeasts or yeast mixtures.
  • 0.1 to 4 liters of thick liquid yeast are added per hectoliter of finished wort. This means that about 2,000,000 to 150,000,000 yeast cells per ml are present in the mixture of yeast and finished wort.
  • the procedure for the preparation of alcohol-free beer can be as follows: Finished wort is brought to a pH value of 3 to 6, preferably 4, and a dry substance content of 6 to 12% by weight, preferably 6% by weight, and is cooled to a temperature below 3° C., preferably below 0° C. and in particular to -0.4° to -0.5° C.
  • a non-watered yeast which has been freshly removed from the fermentation process and has been freed completely from the fermented beer is now added in an amount of 0.1 to 4 liters, preferably 1 liter, per hectoliter (about 30,000,000 yeast cells per ml) of dilute acidic finished wort.
  • the mixture is mixed intermittently or continuously and is kept at the above temperature.
  • the yeast is preferably percolated and super-saturated with carbon dioxide. After a sufficient contact period, preferably 24 to 48 hours, the yeast is separated off without trace from the alcohol-free beer at the above temperature. The dry substance content, the pH value and the carbon dioxide content can now additionally be adjusted to the desired value.
  • the alcohol-free beer for example by filtration over polyvinylpolypyrrolidone, silica gel, a hydrogel or a xerogel, or by degradation of the high-molecular protein substances with enzymes, so that no colloidal precipitates which cause refraction of light or haze form during storage.
  • the alcohol-free beer is then bottled and pasteurised, in order to prevent deterioration of quality as a result of micro-organisms.
  • the desired aroma substances diffuse to a relatively high degree into the finished wort, and a product of higher quality is obtained if the wort has a comparatively low dry substance content and pH value.
  • Fresh yeast which originates from a fermentation vat and has been cooled to about 0° to 5° C. is freed from beer. If necessary, to remove ethanol still present in the yeast suspension, it is pressed or suspended for a short time with micro-biologically clean water and decanted from the supernatant liquor.
  • the cooled finished wort is adjusted to a pH value of about 4 and a dry substance content of about 6% by weight with diluted sulphuric acid or edible acid or microbiologically prepared lactic acid solution, the acid having been freed from oxygen and super-saturated with carbon dioxide.
  • the yeast and the beer wort are cooled to -0.4° to -0.5° C.
  • About 0.5 liter of thick liquid cooled yeast is added to 1 hectoliter of wort.
  • the mixture is kept at -0.4° to -0.5° C. and is mixed, for example by percolation with carbon dioxide or pumping round and by bubbling in carbon dioxide.
  • the yeast is separated off without trace from the alcohol-free beer at a temperature below 0° C.
  • the alcohol-free beer is brought to a dry substance content of 6.0% by weight, a pH value of 4.1 and a carbon dioxide content of 5.2 g per liter, and is stabilised by filtration over polyvinylpolypyrrolidone, filled into bottles or kegs and pasteurised.
  • the alcohol-free beer thus prepared has an alcohol content below 0.05% by weight. It corresponds to conventional alcohol-containing beer in respect of aroma, flavour, foaming properties, clarity and colour.

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  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
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Abstract

To prepare alcohol-free drinks with a yeast aroma, such as alcohol-free beer, an aqueous starting liquid containing nutrients and/or flavor substances is used. The starting liquid can be prepared by mixing a nutrient and/or flavor substance concentrate with water. A yeast is removed from a fermentation process and is freed from the fermented liquid. The starting liquid and the yeast are brought into contact with one another, and in particular at such low temperatures that virtually no alcoholic fermentation occurs. The starting liquid and the yeast are left in contact with one another until the aroma substances of the yeast have diffused from the cell into the liquid and the yeast has exerted its reducing effect.

Description

This is a continuation of co-pending application Ser. No. 366,118 filed on Apr. 7, 1982, now abandoned.
The invention relates to a process for the preparation of alcohol-free drinks with a yeast aroma, such as beer, wine or fruit wine, starting from an aqueous liquid which contains nutrients and/or flavour substances. The liquid can, but does not have to be, fermentable with yeast to give an alcoholic drink. Fermentable liquids, which can be used for this purpose are, for example, finished wort, grape juice and fruit juice. Whey is an example of a suitable non-fermentable liquid. The starting liquids can also be prepared by mixing an appropriate nutrient and/or flavour substance concentrate with water.
Having regard to their health and weight and to the warnings of the consequences of alcohol abuse, especially in traffic, consumers increasingly prefer so-called low-alcohol and alcohol-free drinks, such as alcohol-free beer or alcohol-free wine or fruit wine. The expressions "low-alcohol" and "alcohol-free" have different definitions in different countries, and their use is not permitted in all countries. Arabic countries have recently demanded an alcohol content of 0.0% by volume, that is to say if there is any alcohol content at all, it may only be in the second place after the decimal point. The process according to the invention thus enables drinks in which an alcohol content can no longer be detected (the detection limit is about 0.05% by weight of alcohol at present) to be prepared. The state of the art is described below, using an example of the preparation of an "alcohol-free" beer.
Processes for the preparation of low-alcohol or alcohol-free beer are based on two principles. In processes of the first type, the formation of alcohol during fermentation is curtailed. However, these processes always give beers with a significant alcohol content, and as a rule with a very sweet, malty, bitter and inharmonious flavour because of the high content of dry substance and the pH value and the content of fermentation by-products. In processes of the second type, the alcohol formed during fermentation is subsequently removed from the beer, but this is in most cases associated with a loss of aroma substances which are desirable from a flavour point of view and in some cases with the formation of aroma substances which are rather disadvantageous. Production of beer with an alcohol content of less than 0.05% by weight was hitherto only possible by separating off the alcohol from normal beer by distillation. However, apart from the considerable expense, especially from the point of view of apparatus and energy, considerable exposure to heat is also always to be reckoned with.
All of the other processes, such as, for example, partial fermentation, the use of yeasts which are not capable of utilising maltose or maltotriose, dialysis or reverse osmosis, it is virtually impossible to prepare an alcohol-free beer with an alcohol content of less than 0.05% by weight.
German Offenlegungsschrift No. 2,832,487 from Nordbrau Ingolstadt GmbH & Co. KG discloses, for example, a process for the preparation of beer with a reduced alcohol content by fermentation of wort prepared from malt mash, in which the non-aerated wort is fermented in a fermentation vessel, which has first been completely freed from oxygen, at a temperature of 4° to 7° C. with a yeast addition of 0.25 to 0.35 liter of thick liquid brewer's yeast per hectoliter of wort under a pure CO2 atmosphere until the desired alcohol content is reached. It is said to be possible to prepare a beer in which the alcohol content can be reduced to about 0.2% by weight but which corresponds to a conventional alcohol-containing beer in respect of aroma, flavour, foaming properties and colour by this process.
Further details relating to the preparation of low-alcohol beer can be found, for example, in H. Kieninger and J. Haimerl, Brauwelt 121, 574-581 (1981); M. W. Brenner, MBAA Technical Quarterly 17, 185-195 (1980); E. Kruger, B. Oliver-Daumen, G. Sommer, M. Metscher and H. Berger, Monatsschrift fur Brauerei 33, 422-430 (1980); and P. Jager and J. Puspok, Mitteilungen der Versuchsstation fur das Garungsgewerbe in Wien 32, 36-40 (1978).
The process according to the invention is thus based on the idea of bringing the starting liquids for the preparation of alcohol-free drinks, (which may optionally be prepared from concentrates, such as wort or must concentrate) into contact, at temperatures which are so low that virtually no alcoholic fermentation takes place, with a yeast which has been removed from the fermentation process and has been freed from the fermented liquid. It was hitherto believed that yeast releases no aroma substances at low temperatures, for example, below 0° C. However, it has been found that the aroma substances still diffuse from the yeast into a liquid even at temperatures below the freezing point of the liquid. The yeast thereby additionally has a reducing effect, by which means, for example, aldehydes, which could impart an undesirable aroma to the drink, can be reduced. The starting liquid and the yeast can be brought into contact with one another at, for example temperatures below 3° C., preferably below 0° C. and in particular as close as possible to the freezing point of the liquid, for example, at -0.4 to -0.5° C.
The starting liquid is preferably brought, by dilution, to a dry substance content such that the flavour of the alcohol-free drink is balanced, (for example in the case of beer is not too malty), that is to say, for example, is not too sweet, too watery or too bitter. A fermentable starting liquid can advantageously be adjusted to a dry substance content such as would be obtained after alcoholic fermentation. However, the dilution can also be effected only after the liquid has been brought into contact with the yeast. The dilution is preferably carried out with oxygen-free and/or sterilised and optionally softened water. The dry substance content of the starting liquid is preferably below 30% by weight.
It is as a rule likewise advantageous to reduce the pH value of the starting liquid, because the flavour of the alcohol-free drink is thereby improved, alcoholic fermentation is additionally suppressed, and the danger of micro-biological contamination is decreased. For this purpose, diluted sulphuric acid or an edible acid, such as malic acid, lactic acid or tartaric acid, can be added to the starting liquid until the pH value reaches, for example, 2 to 6, preferably 3 to 5 and in the case of alcohol-free beer in particular about 4. Micro-biological acidification, for example, with a lactic acid solution from a culture of lactic acid bacteria, is, however, equally suitable.
The dry substance content and the pH value are preferably simultaneously adjusted by addition of a water/acid mixture, but it is equally possible first to adjust the dry substance content by addition of water and then to adjust the pH value by addition of acid. It is possible to use, for example, brewing liquor, which as a rule contains fewer micro-biological germs than drinking water and less bicarbonates, or oxygen-free and/or sterilised and optionally softened water, to which, if appropriate, the abovementioned acids are added in the required amount, which also depends on the eventual presence of buffer salts in the starting liquid.
To protect the yeast aroma substances and the contents and to increase the carbonation or freshness of the starting liquid and/or of the alcohol-free drink, the cooled starting liquid and/or the alcohol-free drink are preferably saturated with carbon dioxide in a manner which is known per se. The carbon dioxide content can be up to 10 g per liter, preferably about 5 g per liter.
Preferably, the yeast is brought into contact with the starting liquid directly after removal from the fermentation process. It is preferably freed completely from the fermented liquid. Examples of suitable yeasts are the following:
Saccharomyces cerevisiae (a top-fermenting brewer's yeast),
Saccharomyces carlsbergensis (a bottom-fermenting brewer's yeast),
Saccharomyces uvarum (a bottom-fermenting brewer's yeast), and
Saccharomyces ellipsoideus (wine yeast)
However, it is also possible to use other yeasts or yeast mixtures. As a rule, in the preparation of alcohol-free beer, 0.1 to 4 liters of thick liquid yeast are added per hectoliter of finished wort. This means that about 2,000,000 to 150,000,000 yeast cells per ml are present in the mixture of yeast and finished wort.
The procedure for the preparation of alcohol-free beer can be as follows: Finished wort is brought to a pH value of 3 to 6, preferably 4, and a dry substance content of 6 to 12% by weight, preferably 6% by weight, and is cooled to a temperature below 3° C., preferably below 0° C. and in particular to -0.4° to -0.5° C. A non-watered yeast which has been freshly removed from the fermentation process and has been freed completely from the fermented beer is now added in an amount of 0.1 to 4 liters, preferably 1 liter, per hectoliter (about 30,000,000 yeast cells per ml) of dilute acidic finished wort. The mixture is mixed intermittently or continuously and is kept at the above temperature. It is preferably percolated and super-saturated with carbon dioxide. After a sufficient contact period, preferably 24 to 48 hours, the yeast is separated off without trace from the alcohol-free beer at the above temperature. The dry substance content, the pH value and the carbon dioxide content can now additionally be adjusted to the desired value.
It is possible to stabilise the alcohol-free beer, for example by filtration over polyvinylpolypyrrolidone, silica gel, a hydrogel or a xerogel, or by degradation of the high-molecular protein substances with enzymes, so that no colloidal precipitates which cause refraction of light or haze form during storage. The alcohol-free beer is then bottled and pasteurised, in order to prevent deterioration of quality as a result of micro-organisms.
The desired aroma substances diffuse to a relatively high degree into the finished wort, and a product of higher quality is obtained if the wort has a comparatively low dry substance content and pH value.
EXAMPLE
Normal, hop finished wort is freed from sediment and cooled to about 0° C.
Fresh yeast which originates from a fermentation vat and has been cooled to about 0° to 5° C. is freed from beer. If necessary, to remove ethanol still present in the yeast suspension, it is pressed or suspended for a short time with micro-biologically clean water and decanted from the supernatant liquor.
The cooled finished wort is adjusted to a pH value of about 4 and a dry substance content of about 6% by weight with diluted sulphuric acid or edible acid or microbiologically prepared lactic acid solution, the acid having been freed from oxygen and super-saturated with carbon dioxide.
Before they are brought together, the yeast and the beer wort are cooled to -0.4° to -0.5° C. About 0.5 liter of thick liquid cooled yeast is added to 1 hectoliter of wort. The mixture is kept at -0.4° to -0.5° C. and is mixed, for example by percolation with carbon dioxide or pumping round and by bubbling in carbon dioxide. After a contact period of about 48 hours, the yeast is separated off without trace from the alcohol-free beer at a temperature below 0° C.
The alcohol-free beer is brought to a dry substance content of 6.0% by weight, a pH value of 4.1 and a carbon dioxide content of 5.2 g per liter, and is stabilised by filtration over polyvinylpolypyrrolidone, filled into bottles or kegs and pasteurised.
The alcohol-free beer thus prepared has an alcohol content below 0.05% by weight. It corresponds to conventional alcohol-containing beer in respect of aroma, flavour, foaming properties, clarity and colour.
If, instead of 0.5 liter, up to 4 liters of thick liquid yeast or the corresponding amount of pressed yeast are added per hectoliter of wort, a similar alcohol-free beer is obtained.

Claims (24)

I claim:
1. In a process for preparation of an alcohol-free beverage having a yeast aroma which comprises isolating yeast from a fermentation process and removing fermented liquid of said fermentation process from the yeast, contacting said isolated yeasts with an aqueous liquid containing nutrients, flavor substances or a combination thereof suitable for human consumption and removing the yeast totally from said aqueous liquid to provide said alcohol-free beverage, the improvement which comprises carrying out said contacting at a temperature about -0.4° C. or below for a period of time sufficient to have aroma substances of the yeast diffuse from the cells thereof into said aqueous liquid, to have aroma reactions between the yeast and said aqueous liquid take place, or both, said aqueous liquid having a dry substance content of about 7.0 to 7.5% by weight, to prepare a beverage having an alcohol content of less than 0.05% by weight, said isolated yeast being employed at a ratio of 0.1 to 4 liters on a non-watered, thick liquid basis per hectoliter of said aqueous liquid.
2. A process according to claim 1, wherein said aqueous liquid has been prepared by dilution of a solution of nutrient, flavor substance or a combination thereof with water.
3. A process according to claim 1 wherein said aqueous liquid is finished wort, grape juice or fruit juice.
4. A process according to claim 1, wherein said aqueous liquid contains nutrients or flavor substances resistant to fermentation by yeast to generate alcohol.
5. A process according to claim 4 wherein said non-alcoholic beverage is whey.
6. A process according to claim 1 wherein the dry substance content of said aqueous liquid is reduced by diluting with water before said liquid is contacted with said yeast.
7. A process according to claim 1 wherein said dry substance content of said aqueous liquid is reduced by diluting with water after said liquid is contacted with said yeast.
8. A process according to claim 2 wherein said dilution is with oxygen-free water.
9. A process according to claim 2 wherein said dilution is with sterilized water.
10. A process according to claim 2 wherein said dilution is with softened water.
11. A process according to claim 1, wherein pH value of said liquid is reduced before contacting with said yeast.
12. A process according to claim 11 wherein said pH is reduced by addition of an acid selected from the group consisting of sulphuric acid, malic acid, lactic acid and tartaric acid.
13. A process according to claim 11 wherein said pH is reduced through use of an acid which is a microbial product.
14. A process according to claim 1, wherein said yeast is contacted with said liquid directly after removal from said fermentation process.
15. A process according to claim 1, wherein said aqueous liquid is finished wort which is brought to a pH value of 3 to 6 and is cooled to a temperature below about -0.4° C., 0.1 to 4 liters of non-watered, thick liquid yeast which has been completely freed from fermented beer are added per hectoliter of cooled finished wort, the components are mixed intermittently or continuously at the same temperature and, after sufficient contact with the finished wort, the yeast is separated without trace from the resulting alcohol-free beer at the above temperature.
16. A process according to claim 15, wherein said finished wort is brought to a pH value of 4 and is cooled to a temperature of -0.4° to -0.5° C., 1 liter of non-watered, thick liquid yeast which has been completely freed from fermented beer are added per hectoliter of cooled finished wort, the components are mixed intermittently or continuously at the same temperature and, after sufficient contact with the finished wort for up to about 48 hours, the yeast is separated without trace from the resulting alcohol-free beer at the above temperature.
17. A process according to claim 15, wherein the mixture of finished wort and yeast is supersaturated with carbon dioxide.
18. A process according to claim 17, wherein said supersaturation is by percolation with carbon dioxide.
19. A process according to claim 17, wherein said supersaturation is by bubbling carbon dioxide through said mixture under appropriate pressure.
20. A process according to claim 15, wherein the pH value and the dry substance content of the finished wort are adjusted with a dilute acid selected from the group consisting of sulphuric acid, edible acid or microbiologically prepared lactic acid, said acid having been freed from oxygen and supersaturated with carbon dioxide.
21. A process according to claim 15, wherein the beer is stabilized by filtration over polyvinylpolypyrrolidone or silica gel and then bottled and pasteurised.
22. A process according to claim 15, wherein the beer is stabilized by enzyme degradation of protein substances, and then bottled and pasteurized.
23. A process according to claim 1, wherein the temperature of said contacting is held between -0.4° and -0.5° C.
24. A process according to claim 1, wherein said aqueous liquid comprises substances fermentable with yeast to provide an alcoholic beverage.
US06/715,583 1982-01-04 1985-03-25 Process for the preparation of alcohol-free drinks with a yeast aroma Expired - Lifetime US4661355A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH11/82 1982-01-04
CH1182A CH646844A5 (en) 1982-01-04 1982-01-04 METHOD FOR PRODUCING ALCOHOL-FREE BEVERAGES WITH HEFEAROMA.

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US06366118 Continuation 1982-04-07

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US07/017,354 Continuation US4746518A (en) 1982-01-04 1987-02-24 Process for the preparation of alcohol-free drinks with a yeast aroma

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US4661355A true US4661355A (en) 1987-04-28

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US4957766A (en) * 1987-09-08 1990-09-18 Heineken Technisch Beheer B.V. Process for making beer containing an unfermented beer product
US4957767A (en) * 1987-09-08 1990-09-18 Heineken Technisch Beheer B.V. Method of making a non-alcoholic beer containing spray-dried wort
US4970082A (en) * 1989-10-27 1990-11-13 Miller Brewing Company Process for preparing a nonalcoholic (less the 0.5 volume percent alcohol) malt beverage
US4971807A (en) * 1988-08-22 1990-11-20 Brauerei Feldschlosschen Process for the production of beer with a low alcohol content
US5346706A (en) * 1991-10-28 1994-09-13 John Labatt Limited Malt beverage process
LT3667B (en) 1989-10-27 1996-01-25 Cultor Oy A process for the production of non-alcoholic malt beverage
US20050266120A1 (en) * 2004-05-25 2005-12-01 Tzann-Feng Lin Method for producing beer-like and alcohol-free fermented beverage
US7048940B1 (en) * 1999-06-29 2006-05-23 Gregory Steiner Alpha-pyrone compositions for controlling craving and as a substitute for alcohol
US20060198926A1 (en) * 1999-06-29 2006-09-07 Steiner Gregory G Alpha-pyrone composition for controlling craving and as a substitute for alcohol
CN103320276A (en) * 2013-05-21 2013-09-25 夏怀远 Peach-rice-wine-flavored health-care milk wine and preparation method thereof
US20210235727A1 (en) * 2018-04-25 2021-08-05 Carlsberg A/S Barley Based Beverages
WO2024152091A1 (en) * 2023-01-20 2024-07-25 Bioinfood Soluções Em Biotecnologia Ltda Process of reducing sugars from carbohydrate-rich substrates

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JPS6131070A (en) * 1984-07-23 1986-02-13 Nikken Food Kk Preparation of drink containing living yeast
EP0213220B1 (en) * 1985-08-27 1988-08-31 Henninger Bräu AG Process for the production of alcohol-free beverages
DE3536875A1 (en) * 1985-10-16 1987-04-16 Helmut Ing Osberger PROCESS FOR PREPARING FRUIT JUICES AND PACKAGING UNIT FOR CARRYING OUT THIS METHOD
DE3636721A1 (en) * 1986-01-18 1987-07-23 Stern Brauerei Carl Funke Ag Process for producing a malt drink without any alcohol
DE3606450A1 (en) * 1986-02-27 1987-09-03 Paulaner Salvator Thomasbraeu METHOD FOR THE PRODUCTION OF ALCOHOL-FREE HEFE WHITE BEER
US5612072A (en) * 1990-10-23 1997-03-18 Cultor Ltd. Process for the production of non-alcoholic or low alcohol malt beverage
US5294450A (en) * 1993-02-09 1994-03-15 Coors Brewing Company Colorless flavored malt beverage and method for making the same
US5439699A (en) * 1993-03-11 1995-08-08 Miller Brewing Company Method for preparing colorless clear beer
ES2136020B1 (en) * 1997-06-23 2000-04-16 Navarro Ceballos Mariano NEW PROCEDURE FOR OBTAINING ALCOHOL-FREE BEER.
US6033690A (en) * 1997-10-07 2000-03-07 Labatt Brewing Company Limited Process for pre-conditioning brewer's wort with beer fermentation products and production of a beer therefrom
EP1831344B1 (en) * 2004-10-21 2011-12-28 Diageo North America, Inc Process for making purified beverage products
DK2027244T4 (en) * 2006-05-19 2015-10-12 Heineken Supply Chain Bv Process for the preparation of a light gærfermenteret drink
EP2380448A4 (en) * 2009-01-08 2014-07-02 Kirin Brewery Improvement of flavor of unfermented beer-flavored malt beverage
US20120021116A1 (en) * 2009-01-08 2012-01-26 Kirin Beer Kabushiki Kaisha Unfermented beer-flavored malt beverage having reduced or eased sourness and method for producing the same
JP5227978B2 (en) * 2010-01-08 2013-07-03 キリンホールディングス株式会社 Alcohol-free malt beverage with high flavor ornithine
EP2615159A1 (en) * 2012-01-16 2013-07-17 Anheuser-Busch InBev S.A. Low alcohol or alcohol free fermented malt based beverage and method for producing it.
JP6284311B2 (en) * 2012-11-30 2018-02-28 サッポロビール株式会社 Sparkling beverage, raw material liquid, additive and method related thereto
GB2624725A (en) * 2023-03-03 2024-05-29 The Cornish Scrumpy Co Ltd Fermented beverages

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US2033326A (en) * 1933-05-03 1936-03-10 William F Clark Method of impregnating beer wort with yeast
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DE677581C (en) * 1936-08-19 1939-06-28 Freyberg Brauerei G M B H Method of making malt beer
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957766A (en) * 1987-09-08 1990-09-18 Heineken Technisch Beheer B.V. Process for making beer containing an unfermented beer product
US4957767A (en) * 1987-09-08 1990-09-18 Heineken Technisch Beheer B.V. Method of making a non-alcoholic beer containing spray-dried wort
US4971807A (en) * 1988-08-22 1990-11-20 Brauerei Feldschlosschen Process for the production of beer with a low alcohol content
US4970082A (en) * 1989-10-27 1990-11-13 Miller Brewing Company Process for preparing a nonalcoholic (less the 0.5 volume percent alcohol) malt beverage
LT3667B (en) 1989-10-27 1996-01-25 Cultor Oy A process for the production of non-alcoholic malt beverage
US5346706A (en) * 1991-10-28 1994-09-13 John Labatt Limited Malt beverage process
US20060198926A1 (en) * 1999-06-29 2006-09-07 Steiner Gregory G Alpha-pyrone composition for controlling craving and as a substitute for alcohol
US7048940B1 (en) * 1999-06-29 2006-05-23 Gregory Steiner Alpha-pyrone compositions for controlling craving and as a substitute for alcohol
AU2004202531B2 (en) * 2004-05-25 2006-05-18 Taiwan Tobacco & Liquor Corporation Method for Producing Beer-Like and Alcohol-Free Fermented Beverage
US20050266120A1 (en) * 2004-05-25 2005-12-01 Tzann-Feng Lin Method for producing beer-like and alcohol-free fermented beverage
CN103320276A (en) * 2013-05-21 2013-09-25 夏怀远 Peach-rice-wine-flavored health-care milk wine and preparation method thereof
CN103320276B (en) * 2013-05-21 2015-03-25 夏怀远 Peach-rice-wine-flavored health-care milk wine and preparation method thereof
US20210235727A1 (en) * 2018-04-25 2021-08-05 Carlsberg A/S Barley Based Beverages
WO2024152091A1 (en) * 2023-01-20 2024-07-25 Bioinfood Soluções Em Biotecnologia Ltda Process of reducing sugars from carbohydrate-rich substrates

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